The VISTA variables in the vía láctea survey: A first glance on stellar variability

VVV Collaboration

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

VISTA Variables in the Vía Láctea (VVV) is an ESO public near-infrared variability survey of the Galactic bulge and an adjacent area of the southern mid-plane. It will produce a deep atlas in the ZYJHKs filters, and a Ks-band time-series database of ~ 109 point sources, among which ≳ 106 are expected to be variable. One of VVV’s immediate scientific goals is to provide accurate light curves of primary distance indicators, such as RR Lyrae stars, and utilize these data to produce a 3-D map of the surveyed area and, ultimately, trace the structure of the inner Galaxy. We give, based on the first ~ 1:5 years of the 5-year-long survey, an early assessment on the basic properties and the overall quality of the VVV photometric time-series, and use these data to put an estimate of the fraction of variable stellar sources.

Original languageEnglish
Title of host publicationStellar Pulsations - Impact of New Instrumentation and New Insights
EditorsL.A. Balona, J.C. Suarez, R. Garrido, J. Christensen-Dalsgaard
PublisherSpringer Netherlands
Pages165-169
Number of pages5
ISBN (Print)9783642296291
DOIs
Publication statusPublished - 1 Jan 2013
Event20th Conference on Stellar Pulsations, 2011 - Granada, Spain
Duration: 5 Sep 20119 Sep 2011

Publication series

NameAstrophysics and Space Science Proceedings
Volume31
ISSN (Print)1570-6591
ISSN (Electronic)1570-6605

Conference

Conference20th Conference on Stellar Pulsations, 2011
Country/TerritorySpain
CityGranada
Period5/09/119/09/11

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Computer Science Applications
  • Spectroscopy
  • Space and Planetary Science
  • Nuclear and High Energy Physics

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